Inhaler.



D. E. EKLUND a F. G. a W. M. FGLBERTE INHALEB.,

APELICATION FILED 0511221, 1909.

@Mentaal Aug. 2U, 1912.

To all whom itmay'concem provide a vaporizing'surface of largel area.'

y y ratus is so constructed .that 30.

- [UNITED stra-"rss- PAxifnnzrl oscar. E. ExLUNn','rBEDEn1cx e. ronnnnfrn, AND W'rLLuu m. Eminence, .CALIF-01mm.'

Inman.

B e itknown that we,'0soAR E. EKLUND, FREDERICK G. FoLne'rH, FoLBrnTH, citizens of the residents of 'San Francisco, in San Francisco, Calif cert-ain new and useful Improvements in Inhalers, of'which thefollowing is a speciication.`

.This invention relates to'inhalers for administering anesthetics an its objects are to' improve the construction whereby the ad. mission of the anesthetic tothe face piece may be closely `regulated'.

The invention generally stated consists in avaporizing chamber connected to a- .face piece/bypassage' or tube. This vaporizing chamber preferably forms a `recV receiving the liquid anesthetic.v multaneously regulates the admission of air to the vapo-riz'ing chamber and the admission of the anesthetic andthe air to the tube or passage. The vaporlzing chamber 1s `provided, 'with' a removable base United States, and the county of which has' mounted thereon a number of wicks which The valve 4forms a .removable cover for the v'apor-izingl chamber and the whole appataken apart and cleaned. The face plece and thevaporizing chamberl are connecte by a double joint whereby they may be relatively moved about intersecting axes. n this way the `vapo'rizi'ng maint ained level w ether the his side or on provided with ahollo'w rubber 1ring 'which closely its the face of the patient.

In the drawings, Figure lshowing this invention; view; Fig.` 3 is a section on the line 3'3, Fig. 2 Fig. 4 is a sect-ion on theline Fig. 3; Fig. angles to Fig..

Referring to a casing which ceiving the anesthetic and the vaporizmg chamber. pair of spaced bearing lugs 11, ing lug 11 being in the forml of a fork. lThe 'bearing lug 12'is provided witha recessed bearing 13 and the bearing lug 11 receives a sleeve 14, also providedwith a recessed bea-ring The T-shaped in the recessed bearings 13:1 nd 15 and is propatient lies :o n

5 is a partial elevationat rlg the dra-wings,

specification of Letters Patent. Application mea october' 211,' '1909'. serial No. 523,597.

[vided with an and WILLIAM M ornia, have invented part 20"'to the upper `cated on ,the from` the port mounted on A valve s i- 10. The cover is alsoI V21 and 24.' 'A handleit maybe easily' vvided with -a ceive wicks 35, forthe wicks.

chamberl may be lfore .may be" removed his back. The face piece 1s.

' pin 37 in thebearmg lug 1 is an elevation Fig.' 2 is a top plan 10 designates forms a receptacle for re- The casingis provided with a 12, the bearmember liis mount ed rammed Aug. '19112.

Aarmjor steIv 17 which' engages bearlng, m the fac 4piece 18. The tacepiege has ,secured to it a 'hollow.rubbt-QP- ring 19 which is fastened to the face piece.

in any suitable A main pipe manner.

chamber and-is connected thereto by aport 21. The .vaporizing chamber ,is also. provided with an'a'ir inlet port. 22 whichl is lo- 21. Ai cover 23 1 removably the vaporizing cha iber and provided with ports 24,- 25, ada ted toco- .operate withthe ports 21 'and 22 respectively. These ports are cut in' a dly cover 23'is rotatably mounted 1n t e-- casing provided with an air` inlet or port.27, which communicates with a chamber- 28 andthe flange 26`has cuttherein a port .29 located on the plane 1.oi- .the'ports 30 is securedjo the coverl 23 and the cover is also provided with a circumferential slot v'31 coperatlngwith a -stop lug 32 u onthe v casing 10; The pipe 20 the L -shaped part, 20' and the suitable manner,

A circular base 33 is pro- -number of Wires .-34 which re-v 'the wires forming supports The base 33 is loosely mountof the ber and thereisk secured to casing 10 in any ably by brazing.

cham f or the .purpose Aot ed in the bottom vcleaning'the same. An' -inlet vvalve 12 :and an exhaust valve 38jiss'im1larly mounted upon a pivot pin 39 in the sleeve 14. weighted so', as to yremain posit-ion, shown in Fig. 3. *Anabsorbert wick 40 is vmounted beneath .the exhaust of absorbing 'the normally-in closetmoisturew Thevaporizing fluid anesthetic, which is absorbed by the wicks 35, thewicks providing'avapor ing surface of lai' e 'areal-*By means' of the cover or valve 23 the supplyof anesthetic and air may be-clo'sely regulated.` `ln the 'positionfshown in the Figs. 3; and the air inlet port 22 and the vapor port 21 are. entirely 'open and the air inlet 'port 29 is entirely closech Therefore in. this position ot'. the valve the percpnt'age ot' anesthetic in the 'ronnn'rng for: sur

20 extendstrom the Lshaped end 'of the vaporizing opposite side ofthe chamber Both .valves areprefer- 36 is mounted non" a pivot air which is inhaled by the patient -is a maximum. The air entering through the air inlet port 22 passing through thechamber and as lthe patient nha es.

closely r lulated. More orless moisture.

'will be co lectedy onthe exhaust valve 38 .but this will lbe absorbed by the absorbent 1 wick 40. -By turning the handle 30 clocki as .it will openport 29 and viceversa.. ,The-5 "becoming ladened with the vaporized anesthetic passes down the pipe 20 and is drawn in the patients lungs through the valve 36,

As the patient exhales the valve 36 is automatically closed and the exhaust valve '38 o ens'and allows the gases to be exhausted into the' atmosphere;- By means of this construction it is 'always insured that afresh supply of airv a nd a nes thetic will be' `supplied to the pa'- tient. Since this supply can bekept ,constant, Vthecondition of the patient may be wise, as shown in Figs. 2 and 4,- the port L22 will beclosed, the port 21 will be closed to the -vaporizing chamber' and will be opened 'tothe airpassage 27 by means ofthe port .29. The'l ports 24, 25 and 29 are of the, same v area, therefore, the handle` in' its'movements .will close ports 2stv and 25 the same amount i total amountof port openings to the' pipe v20, and thus thel volume of air or mixture .supplied to the patient, lwill therefore be 'constantat all times.

- The ylia'ndlef()='maybe thrownat any. :time to one extreme position to connect the.. pipe Y, 20 'wlth the atmosphere through the port' 29 'andftheipassage 27.l In this posi-'- tionl'the port 2li-.and the port 22 will be, en-

-ftilf'ely' closed' to the 'vaporizing chamber.

The edge o,f theA slot may be vprovided with a- M's'c'ale tojindicate the amount offport open.- 40

the mixture.v The fac'e piece is movable about ahori-v ig and thus the percentagev of anesthetic in z ontalaxis by swinging inther recessed bearings 13, and movable about a vertical Iaxis by? swinging about the stem 1 7. Therefore f the va orizin perfecty leve and-"by swlnging; the face' pieoe'and the T shaped v'member 16 about the v horizontal a'xisyto different positions, the

5o lying on his side or onhis back. The sleeve chamber may also be kept apparatus may be -used whether a-patient is 14'is'removable endwise, and by removing the lsleeve the face piece and the T, 16 may I be removed from the icasing/1Q by an'endwise movement totheright, Fig.

It is obvious that various changes may be 'made in the details of construction without departing from the spirit and scoDeof the invention', and itlistherefore to be understood that the invention is not to be limited scribed.

Having claimed 1s,

1L In anl inhaler, the combination 'with 'a face piece, -of a vaporizing chamber connected to said face piece, a cover slidingly fitted on said vaporizing chamber, sai'd cover described the inventionwhat `having `an air inlet and a. channel formed therein, and meanswhereby said covermay be moved to place said. channel in commu* nication with said' face piece.-

2. In an inhaler, 'the combination with a face piece, of a vaporizing chamber con nected to said face piece, a p rt connecti-n4 said face piece and chamber, a cover for sai chamber," av flange on ysaid :cover engaging sa1d chamber wall, ports in said flange cooperating with saidfirst port, an airinlet in said cover, a' channel formed in said cover connecting saidA air inletwith one o f said iiange ports, and means whereby 'said 'cover may be rotated to lplace said last vflange port in'communication with said rst port.

' ain all inhalen th .,C'Qmbinatioir with a;

yface piece -a vaporizing chamber forming a .receptacleforthe 'inhaling fluid, andra tube *connecting the face'j piece and vaporiz'ing chamber, of a regulating slide valve forming a removable cover for thechamber.; 14; In aninhalenthe combination with a face piece, a vaporizing chamberforming a receptacle for the inhaling fluid having an air inlet, and a tubehaving an air inlet and connecting the face piece and .'vaporizing chamber, ofv a slide-valve arranged to regulate the supply of air and'vapor to the'tube,

for'the chamber. v 5. lAn inhaler .having an exhaust passage,

the said. valve 'forming a removable cover i -v 100 '7a valve in said passage,'an' d absorben-tmal In testimony whereof we aix ou'rfsigna'f tures in presence of two witnesses.'

OSCAR IlfEKLUND- l AFREDERICK '-Gr.l FOLBERTH.'

WILLIAM FOLBERTH. Witnessesto the. signatures of Oscar E. 'Eklund and William M Folberth: vGEORGE'1)Afi'r1son,-' f

I T. S. GARnE'rfr.

i i Witnesses'to the signaturelofjFrederiokG;

sal 

